function val_ = get(b, propertyName)%get method for class dXbar: query property values%   val_ = get(b, propertyName)%%   All DotsX classes have a get method which returns a specified property%   for a class instance, or a struct containing the values of all the%   properties of one or more instances.%%----------Special comments-----------------------------------------------%-%%-% Overloaded get method for class dXbar%-%%-% Get the value of a particular property from%-% the specified dXbar object%----------Special comments-----------------------------------------------%%   See also get dXbar% Copyright 2007 by Benjamin Heasly%   University of Pennsylvania% just return the value of the given fieldname%   for the first objectval_ = b(1).(propertyName);